Trek 3900 DISC 2010 VS Specialized ROCKHOPPER A1 COMP FS 2000 specs comparison

Trek 3900 Disc

General Infos

Model	3900 Disc
Manufacturer	Trek
Year of production	2010
Current price	Check price Here ==>
Color choice	- Matte Orange - Special Edition Matte White -Matte Black
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches)
Sizes	- 13 (inches) - 16 (inches) - 18 (inches) - 19.5 (inches) - 21 (inches) - 22.5 (inches)

Wheels And Breaking System

Bike front tire	26 X 2.00 (inches) Bontrager LT-3
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Shimano EF-50 Levers ProMax Mechanical Disc Brakes
Hubs for disc brakes	Rear: Shimano FH-M475 Disc Front: Formula Alloy DC20
Rims manufacturer	Bontrager 550
Spoke nipples type	Not Available
Spoke wheel	Not Available

Frame and Body Specs

Frame materials	Alpha White Aluminum
Frame type	TIG-welded
Handlebar construction	Bontrager Approved Riser
Handlebar extender	Optional
Handlebar stem details	Bontrager Approved
Headset size	1 1/8 (inches) Threadless VP-A68-TK

Gearing Specifications

Bicycle chain	Not Available
Bottom bracket shell width	Not Available
Bottom bracket type	Not Available
Crankset parts and sizes	42/34/24 Teeth Shimano M191
Gear shift levers	Shimano EF-50
Rear gear set	11 - 32 Teeth 8-speed

Trek 3900 Disc Fork System Data

Derailleur (Front)	Shimano C051
Derailleur (Rear)	Shimano M-360
Fork material	Single Crown
Fork type	100 (millimeters) Travel SR Suntour SF9 XCT V2

Other Specs of Trek 3900 Disc

Component group sets	Mountain Mix
Pedals details	Wellgo Nylon Platform
Rear shock absorber	Not Available
Saddle seat	Bontrager SSR
Seat post extension	31.6 (millimeters) Diameter Bontrager SSR

Specialized Rockhopper A1 Comp FS

General Infos

Model	Rockhopper A1 Comp FS
Manufacturer	Specialized
Year of production	2000
Current price	Check price Here ==>
Color choice	- Silver and Blue -Black and Orange
Sizes	- 13 (inches) - 15 (inches) - 17 (inches) - 19 (inches) - 21 (inches) - 23 (inches)

Wheels And Breaking System

Bike front tire	Rear: 26 X 1.90 (inches) Specialized Team Master Front: 26 X 2.00 (inches) Specialized Team Control
Bike rear tire	Not Available
Bike wheel size	26 (inches) Wheels
Brakeset type	Tektro Quartz Levers Tektro Quartz Brakes
Hubs for disc brakes	Rear: Specialized Megaphone Comp Front: Specialized Alloy
Rims manufacturer	32-hole Rear: Ritchy Rock Comp OCR Front: Ritchy Rock Comp
Spoke nipples type	Brass Nipples
Spoke wheel	1.8 (millimeters) Straight Gauge Specialized Stainless Steel

Frame and Body Specs

Frame materials	Specialized A1 Aluminum
Frame type	TIG-welded
Handlebar construction	Specialized Alloy
Handlebar extender	Optional
Handlebar stem details	Specialized Alloy
Headset size	1 1/8 (inches) Threadless Tange Seiki Alloy

Gearing Specifications

Bicycle chain	1/2 X 3/32 (inches) Shimano
Bottom bracket shell width	Not Available
Bottom bracket type	Shimano BB-UN40
Crankset parts and sizes	22/32/44 Teeth Specialized Forearm Comp
Gear shift levers	Shimano Deore Rapidfire Plus
Rear gear set	11 - 32 Teeth 9-speed

Specialized Rockhopper A1 Comp FS Fork System Data

Derailleur (Front)	Bottom-pull and clamp-on 35.0 (millimeters) Shimano Deore
Derailleur (Rear)	Shimano Deore LX SGS
Fork material	Triple-clamp Crown Aluminum and magnesium
Fork type	3.0 (inches) Travel Answer Manitou Magnum R

Other Specs of Specialized Rockhopper A1 Comp FS

Component group sets	Mountain Mix
Pedals details	Specialized Single Sided Clipless
Rear shock absorber	Not Available
Saddle seat	Specialized Rockhopper
Seat post extension	30.9 (millimeters) Diameter Specialized Alloy